<template>
  <div>
    <draggable
      :animation="340"
      :list="activeData.sortList"
      group="selectItem"
      handle=".option-drag"
    >
      <div
        v-for="(item, index) in activeData.sortList"
        :key="index"
        class="select-item"
      >
        <div class="select-line-icon option-drag">
          <i class="el-icon-s-operation" />
        </div>
        <el-input
          v-model="item.label"
          placeholder="选项名"
          size="small"
        />
        <div
          class="close-btn select-line-icon"
          @click="activeData.sortList.splice(index, 1)"
        >
          <i class="el-icon-remove-outline" />
        </div>
      </div>
    </draggable>
    <div style="margin-left: 20px;margin-bottom: 10px">
      <el-button
        icon="el-icon-circle-plus-outline"
        style="padding-bottom: 0"
        type="text"
        @click="addSelectItem"
      >
        添加选项
      </el-button>
    </div>
  </div>
</template>

<script>
import _ from 'lodash'
import draggable from 'vuedraggable'

export default {
  name: 'ConfigItemSort',
  components: {
    draggable
  },
  props: ['activeData'],
  data() {
    return {}
  },
  methods: {
    addSelectItem() {
      const lastItem = _.last(this.activeData.sortList)
      const value = lastItem.value === 0 ? _.max(_.values(this.activeData.sortList.map(item => item.value))) + 1 : lastItem.value + 1
      this.activeData.sortList.push({
        label: '',
        value: lastItem ? value : 1
      })
    }
  }
}
</script>

<style lang="scss" scoped>
.select-item {
  display: flex;
  border: 1px dashed #fff;
  box-sizing: border-box;
  align-items: center;

  & .close-btn {
    cursor: pointer;
    color: #f56c6c;
  }

  & .el-input + .el-input {
    margin-left: 4px;
  }
}

.select-item + .select-item {
  margin-top: 4px;
}

.select-item.sortable-chosen {
  border: 1px dashed #409eff;
}

.select-line-icon {
  line-height: 32px;
  font-size: 22px;
  padding: 0 4px;
  color: #777;
}

.option-drag {
  cursor: move;
}
</style>
